Always give yourselves fully to the work of the Lord, because you know that your labor in the Lord is not in vain. (1 Cor 15:58, ESV)
1 Cor 15:50-58, ESV, Holy Bible
50 I declare to you, brothers and sisters, that flesh and blood cannot inherit the kingdom of God, nor does the perishable inherit the imperishable.
51 Listen, I tell you a mystery: We will not all sleep, but we will all be changed--
52 in a flash, in the twinkling of an eye, at the last trumpet. For the trumpet will sound, the dead will be raised imperishable, and we will be changed.
53 For the perishable must clothe itself with the imperishable, and the mortal with immortality.
54 When the perishable has been clothed with the imperishable, and the mortal with immortality, then the saying that is written will come true: “Death has been swallowed up in victory.”
55 “Where, O death, is your victory?
Where, O death, is your sting?”
56 The sting of death is sin, and the power of sin is the law.
57 But thanks be to God! He gives us the victory through our Lord Jesus Christ.
58 Therefore, my dear brothers and sisters, stand firm. Let nothing move you. Always give yourselves fully to the work of the Lord, because you know that your labor in the Lord is not in vain.